Machine for forming cigarette mouthpieces



Sam. 30. 1924, 1mm

F. H. B. STELZER MAKJHINE FOR FORMING CIGARETTE MOUTHPIECES Filed ,fllarch 31, 1921 2 Sheets-Sheet. l

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F. H. B. STELZER mcnms won FORMING CIGARETTE molmw'incas Filed March 31. 1922 2 Sheets-Shee't 2 K SEQEQE rrae stares PATENT @FFEQE.

FRANZ HEINRICH IBENNO STELZER, OF DBESDEN', GERMANY, ASSIGNOR TO UNI- VERSELLE CIGARETTENMASGHINENFABRIK J. G. HELLER 82: 00., OF DBESDEN,

GERMANY.

MACHINE FOR FORMING CIGARETTE MOUTHPIECES.

Application filed. March 31, 1921. Serial No. 457,318.

Republic, residing at Dresden, Germany, 5 have invented certain new and useful Improvements in Machines for Forming Cigarette Mouthpieces, of which the following is a specification.

This invention relates to automatic machines for the formation of mouthpieces for cigarettes, of the kind in which the mouthpiece isformed by rolling a paper strip or blank into a spiral which is subsequently inserted into one end of the paper tube or casing of the cigarette.

The'paper mouthplece strip or blank is, as has previously been proposed, rolled into the required spiral form by means of a rotating winding' -needle. composed of two parts, viz, a needle sheath or casing and a retaining needle located therein which is arranged to grip the end of the mouthpiece strip between the retaining needle and its sheath when the strip is inserted through a longitudinal slot in the sheath.

According to the present invention the retaining needle is maintained against the needle sheath by friction or the like insuch a manner that it rotates with the sheath. Before beginning the rolling of the mouth piece strip and after the insertion of the front end of the strip into the needle sheath the retaining needle is partly rotated or rocked so as to grip the mouthpiece strip end and secure it in the needle sheath. After the strip is completely wound the needle must be rotated or rocked in the reverse direction so as to release the end of the mouthpiece strip which during the further operation of the machine is expelled from the sheath and delivers as a spirally wound mouthpiece. The partial rotation of the retaining needle against friction as above described is eifectediby providing on the end of the retainingneedle projecting from thesheath, a finger whichco-operates with a rocker element so actuated that during the rolling operation is held out from the path of the finger rotating with the sheath, but before and after completion of the rolling comes into engagement with the finger and forces it to one side or the other. The rocker element is preferably constituted by the forked end of a rocking lever, which during the rolling operation remains stationary, in such a position that the finger connected to the retaining needle is intermediate and clear of the forked. ends of the lever. At the beginning and end of the rolling operation, however, the lever is rocked to one side or the other so that one or the other of its forked ends can engage with the finger on the retaining needle, and thus force the finger in one direction or the other as it rotates.

-The invention is illustrated in the accompanying drawing of which- Figure 1 is a view in side elevation, and

Figure 2 a plan view partly sectional ofa portion of a machine constructed in accordance with the invention.

Fig. 3 is a detail perspective view of the needle and its cooperating parts.

Fig. i is a transverse section through the needle and its sheath showing their posi tions when receiving the paper strip from which the mouthpiece is formed.

Fig. 5 is a similar view showing the strip held by the needle; and

Fig. 6 is a similar view showing the tube used in connection with the strip.

Referring now to the drawing it will be seen that the mechanism for forming the mouthpiece consists of a needle sheath a and a retaining needle f rotatably mounted therein. The needle sheath a is secured. to a carrier 7) which is mounted in a bearing 0 arranged on the frame not the machine. The carrier 7) is provided with a pinion d, with which a toothed segment 6 intermeshes through a slot in the bearing 0. The needle f co-operatesin a known manner with the needle sheath (4 i which is provided at its operative end with an entrance slot for the end of the paper mouthpiece strip, (this portion of the sheath a being shown in Figure 2 as broken away). By rotating the retaining needle f the end of the mouthpiece strip is gripped and pressed against the side of the slot and thus held fast. The rolling of the. strip into a spiral is then effected by rotating the sheath a and the a carrier 6 of the needle sheath a. On one end of the needle 7' projecting from the ment with the end of the carrier.

carrier 6 a collar 2' is secured which carries a finger k. The spring 9 tends to draw this end of the needle) into the needle sheath a, sothat the collar 2' is in frictional engage- The spring 9 is so arranged that the friction is sufficient to ensure the retention of the mouthpiece strip during the rolling operation.

In Figs. 4: and 5 in which the needle and sheath are shown on a large scale, the sheath a has a slot 00 through which the strip of paper g enters and passes into a 'V-shaped slot 2 in the needle 7. This strip y is inserted when both members a and f are at rest. After the paper strip is inserted the needle f is turned and as the end a of the fork of lever Z strikes finger it carries the finger with it and causes the needle to be tightly set. The'parts a and f are then simultaneously rotated by turning of the carrier 6, the needle being held in position by friction. The turning of the carrier Z) is accomplished by the meshing of segment 6 with wheel (Z and results in the pushing of the strip y into tube. H, through the slot S in said tube. It is to be understood that when this occurs the slots S and a" must be in radial alinement to permit the strip of, paper y to enter both at once. After the strip of paper is set the sheath a is rotated thereby drawing the strip of paper into tube H and winding it up into a spiral. When the spiral is completed the end of the paper is pulled into the tube and the other end must be released which is accomplished by returning needle f to its initial position.

Before the rolling of the strip commences the finger it lies opposite to the forked end of a bent lever Z, pivotal'ly mounted at m on the frame of the machine. The ends of the fork are provided With rollers '72,. The opposite end of the bent lever Z is provided with a roller 0 which engages in the curved slo't p formed in one side of a cam disc 9'. The curvedslot p is provided with an outward salient r and an inward salient 8, so that the lever Z during each revolution of the ..ca:m disc g is rocked twice in such a manner that on one occasion the fork is moved upwards and the next downwards. When the fork is rocked "upwards the lower roller 1?. engages with the finger it" and presses against it. This results in a turning movement of the retaining needle 7 in the sheath a against friction and this turning movement effects the retention of the previously inserted end of the mouthpiece strip. p

The lever Z then returns to its stationary posit-ion sothat the lingerie can pass the rollers 72 of the fork during the'rotati'on of the needle. Upon the-completion of the rolling operation the finger 7c is again opposite to the fonked'end of the lever Z and the second rocking movement of the fork downwards takes place whereby the finger is is forced over to the other side, the needle 7 is therefore turn-ed backwards in its sheath and the end of the :mouthpiecestr'i-p is released so that the strip wound into a spiral can be pushed out from the needle sheath and inserted in the cigarette casing.

The cam disc 9 also operates a lever t which carries the toothed segment'e effecting the rotation of the needle. The lever t 'by means of a roller it carried thereby engages in a curved slot 4) on the other side ot the cam disc 9. As the curved slots .p

and '2: occupy invariable positions on one and the same cam disc, the correct co-opera-tion of the lever Z and the toothed segment 6 is ensured by a simple and reliable construction.

Having-"now particularly described and ascertained the nature of my invention and in what manner the same is to 'be performed, I declare that What I claimfis-r 1. [11 a machine for forming cigarette mouthpieces, a needle sheath, a retaining needle held by friction in "said sheath in both its retaining and releasing positions, a finger secured to said needle, a,:rocking device for engaging said finger to move said needle to one or the other of its positions, and 11163118 for turning the needle and for actuating said rocking device whereby the enact operation of the needle is insured.

2. In a machine for forming ecigarette' mouthpieces, a needle sheath, a retaining needle held by friction in said sheath in both its retaining. and releasing positions, a finger secured to said needle, a rocking device for engaging said finger to :movesaid needle to one or the other of its positions, said rocking device comprising a forked lever, one of :thetines of-which icons into engagement with the ifinger ion the needle at the beginning and end o f the rotation of the needle to effect the winding of the mouthpiece strip.

3. In a machine for'forming cigarette mouthpieces, a needle sheath, a retaining needle held by friction in said sheath in both :its retaining and releasing positions, means forturningsaid needle, a .finger secured to said needle, a rocking forked lever for engaging said finger to move said by the cam disk for rotating the needle to 10 needle to one or the other of its positions, Wind the mouthpiece strip.

one of the tines vo1 said lever coming into In testimony whereof I aifix'my signaefigagement With the tinge} on the needle a; ture in presence of tWo- Witnesses.

t e loeginnin and end 0 the rotation o the needle 5) efi'ect the Winding of the FRANZ HEINRICH BENNO STELZER' mouthpiece strip, a curved cam disk, a Witnesses: roller carried by said lever engaging said RIcI-LARD IFFERTO, disk to rock said lever, and means controlled J OHANNA SOHAFER. 

